Table 1. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H11⋯O11i	0.91 (5)	1.96 (4)	2.861 (5)	172 (4)
N1—H12⋯O11ii	0.80 (5)	2.18 (5)	2.922 (5)	153 (5)
N1—H12⋯O13iii	0.80 (5)	2.45 (5)	2.955 (4)	122 (4)
N1—H13⋯O13	0.91 (6)	1.96 (6)	2.841 (5)	162 (4)
N1—H14⋯O12iv	0.88 (5)	1.97 (5)	2.848 (5)	174 (4)
C2—H2⋯O11	0.95	2.48	2.873 (6)	105
C6—H6⋯O12v	0.95	2.33	3.243 (6)	161

Symmetry codes: (i) ; (ii) ; (iii) ; (iv) ; (v) .